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    MBUF

    Scheduled Pinned Locked Moved General pfSense Questions
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    • S
      ssbaksa
      last edited by

      From first start after new installation (1.2.2) MBUF numbers are rising and
      they newer go down.This is a busy firewall at university.
      states are not so high 2228/100000 average is 3500/100000

      MBUF Usage  56314 /62340

      Is this OK? Would I have same problem like with prior 1.2 install when system restarts after hitting the ceiling?

      Sasa

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      • S
        ssbaksa
        last edited by

        @ssbaksa:

        MBUF Usage  56314 /62340

        Sasa

        After few hours it is raised to 56315 /62730.

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        • S
          ssbaksa
          last edited by

          I am desperate now!

          MBUF 235215 /241665

          There must be some memory leak or I don't know what's eating my memeory.

          Please help.

          Sasa

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          • P
            Perry
            last edited by

            Don't know if it helps….
            A quick google search gave me
            http://lserinol.blogspot.com/2009/01/freebsd-network-tuning.html
            http://marc.info/?l=freebsd-net&m=122936905304215&w=2
            commands
            systat -mbuf
            vmstat -z | grep -i mbuf

            @http://forum.pfsense.org/index.php/topic:

            This might be helpful: http://www.google.com/url?sa=t&ct=res&cd=5&url=http%3A%2F%2Fwww.bsdcan.org%2F2004%2Fpapers%2FNetworkBufferAllocation.pdf&ei=95ttR6jfBJfIhgKWvOU1&usg=AFQjCNE0FZjhZBOghCEY3a8icvugBtNDnQ&sig2=Byab07C9geQ-1Qric8fAxw

            You might add more ram to the machine if you are really worried about it.

            Do you use intel nic's?

            /Perry
            doc.pfsense.org

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            • S
              ssbaksa
              last edited by

              @Perry:

              Don't know if it helps….
              A quick google search gave me
              http://lserinol.blogspot.com/2009/01/freebsd-network-tuning.html
              http://marc.info/?l=freebsd-net&m=122936905304215&w=2
              commands
              systat -mbuf
              vmstat -z | grep -i mbuf

              @http://forum.pfsense.org/index.php/topic:

              This might be helpful: http://www.google.com/url?sa=t&ct=res&cd=5&url=http%3A%2F%2Fwww.bsdcan.org%2F2004%2Fpapers%2FNetworkBufferAllocation.pdf&ei=95ttR6jfBJfIhgKWvOU1&usg=AFQjCNE0FZjhZBOghCEY3a8icvugBtNDnQ&sig2=Byab07C9geQ-1Qric8fAxw

              You might add more ram to the machine if you are really worried about it.

              Do you use intel nic's?

              This is output from systat

              systat -mbuf

              /0  /1  /2  /3  /4  /5  /6  /7  /8  /9  /10
                  Load Average

              /0  /5  /10  /15  /20  /25  /30  /35  /40  /45  /50  /55  /60

              And this from vmstat

              vmstat -z | grep -i mbuf

              mbuf_packet:              256,        0,  117963,    5685, 795130678,        0
              mbuf:                    256,        0,  117455,    1087, 451249037,        0
              mbuf_cluster:            2048,        0,  123650,      508, 136946898,        0
              mbuf_jumbo_pagesize:    4096,    12800,        0,      104,    4085,        0
              mbuf_jumbo_9k:          9216,    6400,        0,        0,        0,        0
              mbuf_jumbo_16k:        16384,    3200,        0,        0,        0,        0
              mbuf_ext_refcnt:            4,        0,        0,        0,        0,        0

              Yes I have Intel em0 cards which I have used before without any trouble. My firewall's are mostly on Intel 1U servers.

              There is only one different thing - this server have a bridge between WAN card and DMZ on VLAN. Normally for DMZ I have separate card.

              I don't think that RAM is problem - there is 2 GB inside.

              Sasa

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